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Impacts of CMEs on Earth Based on Logistic Regression and Recommendation Algorithm

open access: yesSpace: Science & Technology, 2022
Coronal mass ejections (CMEs) are one of the major disturbance sources of space weather. Therefore, it is of great significance to determine whether CMEs will reach the earth.
Yurong Shi   +5 more
doaj   +1 more source

Energy-Based Adversarial Example Detection for SAR Images

open access: yesRemote Sensing, 2022
Adversarial examples (AEs) bring increasing concern on the security of deep-learning-based synthetic aperture radar (SAR) target recognition systems. SAR AEs with perturbation constrained to the vicinity of the target have been recently in the spotlight ...
Zhiwei Zhang   +4 more
doaj   +1 more source

The Role of Graphic Design Semiotics in Environmental Awareness Campaigns. [PDF]

open access: yesInt J Environ Res Public Health, 2023
This work aims to explore the usefulness of graphic design in awareness campaigns promoting sustainable tourist destinations and to identify their contribution to the success of the campaigns in terms of their generating increased protection of the ...
Vallverdu-Gordi M, Marine-Roig E.
europepmc   +2 more sources

Initial Results of Meteor Wind with Langfang Medium Frequency Radar

open access: yesAtmosphere, 2020
We conducted meteor observations during the Leonid meteor shower on 16 November 2017 and 17 November 2018 with Langfang medium frequency (MF) radar (116° E, 40° N). This was the first nighttime meteor observation by MF radar in mid-latitude China.
Bing Cai   +3 more
doaj   +1 more source

An Improved HVQ Algorithm for Compression and Rendering of Space Environment Volume Data with Multi-correlated Variables

open access: yesKongjian kexue xuebao, 2023
Volume visualization can not only illustrate overall distribution but also inner structure and it is an important approach for space environment research. Space environment simulation can produce several correlated
BAO Lili   +4 more
doaj   +1 more source

Density Correction of NRLMSISE-00 in the Middle Atmosphere (20–100 km) Based on TIMED/SABER Density Data

open access: yesAtmosphere, 2020
This paper describes the density correction of the NRLMSISE-00 using more than 15 years (2002–2016) of TIMED/SABER satellite atmospheric density data from the middle atmosphere (20–100 km).
Xuan Cheng   +3 more
doaj   +1 more source

Deep neural networks of solar flare forecasting for complex active regions

open access: yesFrontiers in Astronomy and Space Sciences, 2023
Solar flare forecasting is one of major components of operational space weather forecasting. Complex active regions (ARs) are the main source producing major flares, but only a few studies are carried out to establish flare forecasting models for these ...
Ming Li   +12 more
doaj   +1 more source

Quiz-style online training tool helps to learn birdsong identification and support citizen science [PDF]

open access: yesPeerJ, 2023
Citizen science is an important approach to monitoring for biodiversity conservation because it allows for data acquisition or analysis on a scale that is not possible for researchers alone.
Yui Ogawa   +5 more
doaj   +2 more sources

Environmental Awareness and Happiness [PDF]

open access: yes, 2005
The focus of this paper is on the relationship between an individual's environmental attitudes (or awareness) and well-being. We use an ordered probit model to examine the relationship between individual measures of subjective well-being and environmental attitudes regarding ozone pollution and species extinction.
Ada Ferrer-i-Carbonell, John M. Gowdy
openaire   +1 more source

A machine learning-based model for the next 3-day geomagnetic index (Kp) forecast

open access: yesFrontiers in Astronomy and Space Sciences, 2023
The 3-day Kp forecast product is important and necessary for space weather forecasts. There is some essential information that can be obtained from the 3-day Kp forecast product, such as the start time of the geomagnetic storm, the maximum storm level ...
Jingjing Wang   +10 more
doaj   +1 more source

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